3273728 has 44 divisors (see below), whose sum is σ = 6877920. Its totient is φ = 1554432.

The previous prime is 3273703. The next prime is 3273737. The reversal of 3273728 is 8273723.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 3273694 and 3273703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23483 + ... + 23621.

Almost surely, 2^3273728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3273728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3438960).

3273728 is an abundant number, since it is smaller than the sum of its proper divisors (3604192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3273728 is a wasteful number, since it uses less digits than its factorization.

3273728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 164 counting only the distinct ones).

The product of its digits is 14112, while the sum is 32.

The square root of 3273728 is about 1809.3446327331. The cubic root of 3273728 is about 148.4844122747.

It can be divided in two parts, 32 and 73728, that multiplied together give a square (2359296 = 1536²).

The spelling of 3273728 in words is "three million, two hundred seventy-three thousand, seven hundred twenty-eight".